不同饵料对管角螺生长、肝脏消化酶活性及软体部营养成分的影响  

Effect of different diets on growth, digestive enzymes activities in liver and nutritional composition in visceral mass of Hemifusus tuba Gmelin

作　　者：靳立兵[1] 张林林[1] 李荣华[1] 母昌考[1] 宋微微[1] 王春琳[1] 

机构地区：[1]宁波大学海洋学院,浙江宁波315211

出　　处：《海洋科学》2013年第6期66-72,共7页Marine Sciences

基　　金：宁波市重点学科资助项目(XKL11D2101)

摘　　要：以缢蛏(Sinonovacula constricta)(A)、菲律宾蛤(Venerupis Philippinaram)仔(B)及自制配合饲料(C)作为饵料,分别研究了上述3种饵料对二龄管角螺(Hemifusus tuba Gmelin)生长、肝脏消化酶活性以及软体部营养成分的影响。结果表明:(1)鲜活饵料的投喂更有利于管角螺的生长和营养物质的累积,配合饲料的摄食效果较差,还需进一步的优化和完善;其特定生长率大小为:缢蛏组>菲律宾蛤仔组>配合饲料组,组间差异显著(P<0.05);(2)不同饵料的投喂对其肝脏消化酶活性的影响差异显著,在整个实验区间的胰蛋白酶活力的大小为:缢蛏组>菲律宾蛤仔组>配合饲料组,组间差异显著(P<0.05);配合饲料组的淀粉酶活力和脂肪酶活力先降后升,鲜活饵料组则较稳定;45 d后配合饲料组的淀粉酶活力和脂肪酶活力皆显著高于鲜活饵料组的(P<0.05);表明管角螺在饥饿时,消化酶可能存在补偿性分泌,优先利用糖原和脂肪作为能源物质;(3)不同饵料对管角螺软体部的灰分和水分没有显著影响(P>0.05),鲜活饵料组的粗蛋白和粗脂肪含量皆显著高于配合饲料组(P<0.05)。Effects of three different diets, including Sinonovacula constricta（A）, Meretrixie linnaeus（B） and for- mulated diet（C） on the growth, digestive enzymes activities and nutritional composition in sceral mass of two-year-old Hemifusus tuba Gmelin were studied. The results showed that： （1） the live feed was more conducive to H. tuba Gmelin growth and accumulation of nutritional, and the C feeding effects was more poorer and need further optimization and perfection; the SGR was significantly different among the experiment groups （P〈 0.05）, group A 〉 group B 〉 group C; （2） the digestive enzymes activities in liver of H. tuba Gmelin were significantly different by feeding different diets. The specific activities of trypsin were significantly different among the experiment groups （P〈0.05）, group A〉group B〉 group C; the specific activities of amylase and lipase were first decreased and then increased, but the live feed groups were much more stable; the specific activities of amylase and lipase were sig- nificantly higher than live feed groups （P〈0.05）, suggesting there might be compensatory secretion of digestive enzymes, and glucose and fat were utilized preferentially when H.tuba Gmelin was hungered; （3） no significant difference in moisture content and crude ash in visceral mass among the experiment groups （P〉0.05）, the crude protein and the crude fat content of live feed groups were significantly higher than that of the group C （P〈 0.05）.

关 键 词：管角螺(Hemifusus tuba Gmelin) 饵料 生长 消化酶 营养成分 

分 类 号：S963[农业科学—水产养殖]